diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 7931125..7f52de9 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
 
     steps:
     - uses: actions/checkout@v4
diff --git a/src/decorator.py b/src/decorator.py
index 35e5b18..da3646c 100644
--- a/src/decorator.py
+++ b/src/decorator.py
@@ -423,8 +423,8 @@ def dispatch_info(*types):
             """
             check(types)
             lst = []
-            for anc in itertools.product(*ancestors(*types)):
-                lst.append(tuple(a.__name__ for a in anc))
+            for ancs in itertools.product(*ancestors(*types)):
+                lst.append(tuple(a.__name__ for a in ancs))
             return lst
 
         def _dispatch(dispatch_args, *args, **kw):